Antiretroviral therapy, gradually becoming the standard of care in developing countries, confers enormous benefits and yet substantial morbidity remains in human immunodeficiency virus (HIV) positive populations. Multivitamin supplements have immune-enhancing effects, and supplements were found to improve immunologic status and reduce morbidity and mortality among HIV-positive Tanzanian women in pre-highly active anti-retroviral therapy (HAART) stages of disease. These supplements are thought to be required to restore adequate nutrient levels in the context of HIV infection.